OfflineLicenseHelper Skips Custom Headers When Downloading Offline License

[anwarpro]

Version

Media3 1.5.1

More version details

I am using OfflineLicenseHelper.newWidevineInstance in Media3 to download an offline license. While streaming works correctly and includes custom headers in the license request, offline license downloading ignores them.

val offlineLicenseHelper = OfflineLicenseHelper.newWidevineInstance(
    drmConfiguration!!.licenseUri.toString(),
    drmConfiguration.forceDefaultLicenseUri,
    dataSourceFactory,
    mutableMapOf("Test" to "Test value"),
    DrmSessionEventListener.EventDispatcher()
)

Devices that reproduce the issue

• Oppo A33

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Yes

Reproduction steps

1. Create an instance of OfflineLicenseHelper.newWidevineInstance with custom headers.
2. Stream DRM-protected content and verify that the license request includes the headers. (I use
3. Attempt to download an offline license and observe that the headers are missing.

Expected result

The license request for offline downloading should include the provided custom headers, just like in streaming.

Actual result

While streaming includes custom headers in the license request, offline license downloading does not send them.

Media

{
        "name": "Axinom v10 - CMAF",
        "uri": "https://media.axprod.net/TestVectors/MultiKey/Cmaf_h264_1080p_cbcs/manifest.mpd",
        "drm_scheme": "widevine",
        "drm_license_uri": "https://drm-widevine-licensing.axprod.net",
        "token: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.ewogICJ2ZXJzaW9uIjogMSwKICAiY29tX2tleV9pZCI6ICI2OWU1NDA4OC1lOWUwLTQ1MzAtOGMxYS0xZWI2ZGNkMGQxNGUiLAogICJtZXNzYWdlIjogewogICAgInR5cGUiOiAiZW50aXRsZW1lbnRfbWVzc2FnZSIsCiAgICAidmVyc2lvbiI6IDIsCiAgICAibGljZW5zZSI6IHsKICAgICAgImFsbG93X3BlcnNpc3RlbmNlIjogdHJ1ZQogICAgfSwKICAgICJjb250ZW50X2tleXNfc291cmNlIjogewogICAgICAiaW5saW5lIjogWwogICAgICAgIHsKICAgICAgICAgICJpZCI6ICJiNTRlYzkxNC0xOTJkLTRlYTEtYWMxOS1mNDI5ZWI0OTgyNjgiLAogICAgICAgICAgImVuY3J5cHRlZF9rZXkiOiAiR1ZERnJZUU9Bb1kzZmpxVVVtamswQT09IiwKICAgICAgICAgICJ1c2FnZV9wb2xpY3kiOiAiUG9saWN5IEEiCiAgICAgICAgfSwKICAgICAgICB7CiAgICAgICAgICAiaWQiOiAiYzgzYzRlYTgtMGYyYS00NTIzLTg1MWMtZmJlY2NkYzBmMjAyIiwKICAgICAgICAgICJlbmNyeXB0ZWRfa2V5IjogIlRKZGZsWmJLYmZXQXl5K1dta21UUEE9PSIsCiAgICAgICAgICAidXNhZ2VfcG9saWN5IjogIlBvbGljeSBBIgogICAgICAgIH0sCiAgICAgICAgewogICAgICAgICAgImlkIjogImM4NjhjNzAyLWM3MWItNDA2NC1hZTJiLWMyNGY3Y2MxMDc5MiIsCiAgICAgICAgICAiZW5jcnlwdGVkX2tleSI6ICJ4QXJpUkpOcUFTdXp6RExDRzNXSjdnPT0iLAogICAgICAgICAgInVzYWdlX3BvbGljeSI6ICJQb2xpY3kgQSIKICAgICAgICB9CiAgICAgIF0KICAgIH0sCiAgICAiY29udGVudF9rZXlfdXNhZ2VfcG9saWNpZXMiOiBbCiAgICAgIHsKICAgICAgICAibmFtZSI6ICJQb2xpY3kgQSIsCiAgICAgICAgInBsYXlyZWFkeSI6IHsKICAgICAgICAgICJtaW5fZGV2aWNlX3NlY3VyaXR5X2xldmVsIjogMTUwLAogICAgICAgICAgInBsYXlfZW5hYmxlcnMiOiBbCiAgICAgICAgICAgICI3ODY2MjdEOC1DMkE2LTQ0QkUtOEY4OC0wOEFFMjU1QjAxQTciCiAgICAgICAgICBdCiAgICAgICAgfQogICAgICB9CiAgICBdCiAgfQp9.XC0YIbZpKGFc3IZROklP4LvISc6cZGpE9UL-XcpcqWg",
        "header": "AxDrmMessage"
      }

Bug Report

• You will email the zip file produced by adb bugreport to [email protected] after filing this issue.

[tonihei]

Could you clarify which headers are not set correctly? As far as I understand, the headers given as mutableMapOf("Test" to "Test value") in the example should end up as key request parameters for the license, similar to how this works during playback. Is that what you are observing?